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| | | | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | I heard about using a 12 volt motor from Granger as a replacement for the deluxe heater. I had even passed on what I was told. But now I have done the swap, and will no longer recommend it.
Problems encountered were:
Shaft diameter requires a bushing 1/4 to 5/16.
Retainer. You can't use the snap on retainer. I had to drill and tap the fan hub to put in a setscrew. Not an easy job.
Mounting studs. Minor change, studs are on 3-1/2 center versus 3-9/16 requiring opening upp holes in the heater housing.
Sealing. The Granger motor is not watertight. I had sealed the motor with rtv, but finally made a cover to keep the moisture out.
Wiring. The wiring for the Granger motor comes out the end cap into the engine bay, the original motor wire remains inside the cab. Also, the motor is wire reversed from the direction needed. I took care of that by switching the wires.
Considering the cost, the motor from Granger is $20, vendor prices are about $45. If I had to do it again, I would buy a replacement from a vendor.
Fred
52 3600
69 C-10
| | | | | Joined: Dec 2002 Posts: 571 Shop Shark | | Shop Shark Joined: Dec 2002 Posts: 571 | Thanks for the heads up on that one. Prolly gonna get a 12 volt motor soon. The 6 volt w/ voltage reducer makes me nervous. I can smell the electric motor getting hot. Maybe it's the voltage reducer itself, dunno. | | | | | Joined: Oct 2003 Posts: 445 Shop Shark | | Shop Shark Joined: Oct 2003 Posts: 445 | for my heater motor from 6vto12v.I used a12v motor from a defroster fan,2 speed.the ones with the cage around them.that ya seen on school buses and old pu's.It fit perfect,same size as old 6v motor.Thought this could help someone out!!!!!!
dan-pa
| | | | | Joined: Apr 2005 Posts: 345 Shop Shark | | Shop Shark Joined: Apr 2005 Posts: 345 | I have a guy near my house (L.A. area) that rebuilds all kinds of motors. My dad has had his jackhammer motor there, we've had him redo solenoids etc. I would imagine that such a person could change the windings to accommodate a higher voltage on the stock motors. My heater motors are both seized up, so I'll be bringing them to him. | | |
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